Synthesis of C-14 labeled GABA<sub>A</sub>α2/α3 selective partial agonists and the investigation of late-occurring and long-circulating metabolites of GABA<sub>A</sub>receptor modulator AZD7325
作者:Markus Artelsmair、Chungang Gu、Richard J. Lewis、Charles S. Elmore
DOI:10.1002/jlcr.3602
日期:2018.5.15
Anxiolytic activity has been associated with GABAA α2 and α3 subunits. Several target compounds were identified and required in C-14 labeled form to enable a better understanding of their drug metabolism and pharmacokinetic properties. AZD7325 is a selective GABAA α2 and α3 receptor modulator intended for the treatment of anxiety through oral administration. A great number of AZD7325 metabolites were observed across species in vivo, whose identification was aided by [14C]AZD7325. An interesting metabolic cyclization and aromatization pathway leading to the tricyclic core of M9 and the oxidative pathways to M10 and M42 are presented.
抗焦虑活性与 GABAA α2 和 α3 亚基有关。为了更好地了解这些化合物的药物代谢和药代动力学特性,我们确定了几种目标化合物,并要求它们以 C-14 标记的形式存在。AZD7325 是一种选择性 GABAA α2 和 α3 受体调节剂,用于口服治疗焦虑症。通过[14C]AZD7325,在不同物种体内观察到了大量的AZD7325代谢物。报告介绍了一条有趣的代谢环化和芳香化途径,该途径导致了 M9 的三环核心以及 M10 和 M42 的氧化途径。